Razor-blade sharpener



July 3, 1928.

Filed A ril's, 192e- 0 7 2 6 z m J J J 7 x WV 9 k z 2 4 AT l l 2 y I \74 m 2 m 4 INVENTOR VVZILZEE W UPINGTON ATTORNEYS v r barbersr willibehad.

v V 45;;pi'ng "orjsharpening element.

i theline I .one ,endjof;the blade holder.

Pir t iui 19 23 g I a p 'if' yv'nn'rnn, vvQUPINGroiT; triac oiltiyvqlisniiae rpii,

. a MOB-BLADE I I pplication fi Allin 2;

"The present inventionlis concerned with the provision of a sharpening.device, and in ,its-lbroader aspects comprehendssupporting Jcam' plate'whichwontrols therocking oi ithe ,and'ro'cking niechanism'for an.object .to be. sharpened, which may find a wide and varied rangeiofusefulness inthe arts; In apreferredhembodiment ofthe invention, thedevice isl utilized-ff0r1g$harpening -r'az0r, r bladesysuch for instanceas bladesfofathe:

. ordinarylGillette or Durham duplex-type. ,I-w

' vAnobjectsof theinventi0nis1to provide ay 1 I blade carriage which maybe associated, with a conventional type of strep, andreciprocatingnalongithexstrop toieffect sharpening of 55 the'blade. V xTr a; i

A feature of the invention is the provision ofrayblade: sharpener inwhich "the blades are always-held at an angle, to the transverseplanenof ."thestrop, ySOiFlJhiL-li; the-z desirable 20. "drawing off ianion commonlyemployed; by

r further featuretof :the invention the provisionwof 'a"blade holder.'rfrom -Whichblad es may-bereadilyIemovedand replaced,

5 and which will facilitate the rapidturning over oftheblades-jforrsharpen ing opposite side's-thereoil Q4 "Other objects ofr the. invention a1-.e; :to. pro: videzia blade sharpening z llnitqof.simple;

3 practicalaconstructiony Which willbe, rugged;

durable; andi-ieflicient .in use, and which; inaym bemanufacturedZWithicomparativeeconomy;

view, the invention consists in certain novel i i 7 3 5 jfeaturesjofconstruction Sand combinations 5 nflflly understood from thefOllOWlIlgdBCIiP-Z; "tion ,inconnection; with 2 the accompanying"drawings, whereino-' I a :Eignlgis a toppla-n view ofabladeisharp: iener embodying the present .inveiitiomshowe l; ingth same inoperativerelation to -a strop.;a

Fig '2lis anview in sidefelevat'o of Fig, 1;; Fig; 3. isa longitiidinal-sectional,view on f of: Fig] 1 with" the strop :re.' I moved. e Fig. Aisa transversesectional-view "staggered lineHeofFigi'ls 2 1,,Fig.5"islan -enlargedsectional detail of:

Fig .6 1s a perspective new. 0

i 5 t'ype ofzsharpe'ning-nnit invvh-ichthe strap-5* plate 24 :is hingedas fat 251m SHARPE E 192's; s riai vo; 99,385. ping'jeleinentwis vin thenature of an endless belt contained'ivithinthe unity; v.

Fig. 7 is aiperspective' view of the sliding} lnktheu foi'm of theinventionshowii in- F ig's l, to5 :andl7, sharpener inclu'des 'a bladeholding iunit adapted to 'be associated v With a-1conv'entionalstrop-10fa'nd manually reciprocated back 7 and forth along lthe strop- It0 efiect sharpening of theb'l'a'de; illhe bladellOldlIlgllIliflIIliiYincludna casing 11open -at- 7 its topsq lhesideplates 12' of the casing are? connected'nea-rtheir. uppeivzjco'rners byrollersil3 under which the stropj10 'is' passed. ,7!) Theastrop' i's,th-readednnder-one roller 13;? over the face. :of sliding i cam plate14, and: under: the .faceofthe other relief, soithatthe camwplate is'frictionally engaged b'y f thei;

Gam pla aimsar-iiaiaaai-da have;

ment-on suitableg'uideiways or..,platforms shown,"t heseiguiderWaysmay;be'conyenienti p 1y "formed 'as invv'ardlypresented-flanges car-v r'led by knurled handle plates' IG riveted oI 1. otherwise 'securedlat.1.72.5136nttlie fouter fa c'es i v offtherzside*iwallsf :Th ese {plates iafford .v i V roughenedthumb?andfingerreheiving. por i; tions -vvhich inlay? bej grasped ats thejbljadefholdingiinitjis -manua-l'ly"jrecipi'ocated er 3 thezstr0p.iwlntegrab'oririgiid with -thezica 5 ingwall's' are pa ifaof'upwardly-z resent;.

ed 'apertured "fears" 18'; and 19*Which receive trunnions 2 0-iatthe'ends of 'a= b'lade s u'ppo1't i v ingvpIate "member 21 wvhereby theplatemember: iis: i 'ockablyi'monntedf in the e arsxi i =Platemember :21is forined =Wli3l1 lugs 22 adapted 0 6111161 the'iisual apertnresfiin'Gillette'blade-indicatedat;2 -Aolampi n'g f p p ion'eflend 1 oithe-plate '21vandAco-opei'fatesvvith theplate W 2lato hold athe blade'23 :inplaces iPrefer v 1 ablyafplate 24 1s formed "Withiiapertures 267?Y positerendoli the plate: 21 Asibest seen inf l 7 Figs. 4 eandv5,'this'l yo kemay be' svvungout V I V 'wa'rdly: to permit movementiof.the plat'e'24z1 L 7 toward or away from blade clamping posiaction orangular slidingaction which is considered the .IDOSlZ- efficient for:sharpening Purposes. I i

Operative connections are when the direction of relative movement of thecasing ll-and strop 10 are reversed; As

best seen in Fig. 7, the plate 14 is provided on .each side withupstanding flanges 30.

These: flanges areeach'formed at one end blade holder mechanism, camplate-etc., are

with a cam groove 31 adapted-toco-operate with a cam bar 32: carried bythe blade hold- I ing plate' 21. Preferably the grooves 31 are 7 ofarcuate shape :and'the under faces ofthe;

ends ofthe cam bars 32 are curved at 33 in lit accordance with thecurvatures grooves 31. Since the bladeholder is angularly disposedrelativeto the transverse plane of the cam plate 14, the cam grooves 31-are, not opposite. each other, but are'arranged near, opposite ends oftheir respective flanges 30.

The .operation of the device is substantial- '1) as follows. 1 Beforethe blade is placed in the holder, the casing llis mounted uponmesa-plO-by threading the shop under the rollers 13, and. over .the cam plate14; in the manner above described. The locking yoke 28 is then swung.t-o the'dotteduline position of Fig. 5. .Clamping-bar2 lis swung on itspivot to permit a blade to be laidupon the plate 21 with its aperturesreceivingzthe lugs'22. The clamping plate is. then swung down and lockedby the yoke 28. r The handlepieces 16'of the casingare then grasped andmanually reciprocated to -slide the easing back a-nd forthalongthest-roplO, one end; of which will be anchored .orhung on av suitablesupport in'the customary manners As the casing moves, in onedirectionrelas tiveto the strop, the frictional engagement between the strop andthe cam plate 14 will tend to retardthe cam plate, and upon such:re-lative-movement of thecam plate :and cas 'ing the curved walls of;notches 31 .cam'

against the curvedends ofthetwocam bars 32 10. tilt them as shown inFig. 3,. and con-Y sequentlyto rock the bladeholder, and swing the edgeof the bladeagainst the strop. The

' i angrularity of the working faces of the cam grooves 31, 31 is suchthat a wedgingaction is provided between the face of the cam and theends of the cam bars 32 to oscillate the blade holderv .It will be notedthat. as the provided between the cam plate ll and the blade holder '21,2iytoneil'ect' reversal of the blade holder of the 7 blade holder isoscillated, one edge of the blade is moved against the strop, thewedging action between the cam groove and cam bars serving to force theblade to be sharp- .ene d against the strop with suficient friction tolimit the sliding movement of the thecasing 42s, and one of the rollerscarrying. an operat-ing. crank handle '43. The

the samev as described above, and by reversing the direction of rotationof the crank handle, the blade holder will be reversed asfwill' bereadily understood.

Various changesand alterations might be'inade in the general form andarrange ment of parts described without departing from the invention.Hence I dov not wish to limit myself to the details set fortln but'shall '7 consider myself at liberty to make such changes and alterationsas fairly fall within the spiritand-scope ofthe appended claims.

I-claim:

- I. In a sharpener of the class described,

stropping means and blade holder'support ing means movable relative toeach other, a

tilting blade holder on-the supporting means disposed at an angle to thetransverse axis of the stropping means, means operable upon relativemovement of :the stropping means and bladeholder supporting means, toswing oneedge of a blade in the holder against the stroppingmeans,.whereby the desired draw-.7

ingofi' sharpening action is'had,and= means 7 compelling reverse'tilting'of the blade'hold'er when the direction of relative movement ofthe blade holder supportingmeans and stropping means is reversed, thereverse tilting means including a cam plate slidablymounted'in the bladeholdersupporting means and shiftable 'byits frictional engagement withthe stropping means; 2. I n a sharpeneriof the class described,stropping means and blade holder supporting means movable relative toeach other, a

- tilting blade holderon the supporting meansf disposed at an angle totransverse axis of the stropping mean-s, means operable upon relativemovement of thestro'pping means and blade holder supporting means, toswing one edge of a blade in-the hol d eragainstthe stropping means,whereby the desired-drawing'ofi sharpening action'is had,meansfcoinpelling reverse tilting of the blade holder when the directionof relative movement of the blade holder supporting means'and 'stroppingmeans is reversed, the reverse tilting means including a cam plateslidably mounted in the blade holder supporting means I and shiftablebyits frictional engagement with the stropping means, andcam fingersrigid with the blade holder rocked by cams on the plate. t

3.7A razor, blade sharpenerincluding a strop, a blade holder,support-connected to the 'strop for sliding movement relative thereto,'ablade holder rockably mounted in the support, a cam plate slidableinthe, support andshifted by its frictional engage ment with the strop,operative connections between the cam plate and blade holder .for

" ;rocking the blade holder to reverse the blade with the strop,operative connections between the cam plate and blade holder for rockingthe: blade holder to reverse the blade as the cam plate slidesrelativeto the support, said connections including grooved flanges onthe'camplate and cams on the holder working in the grooves. V

5; A razor blade sharpener including a strop, a blade holder supportconnected to. the :strop for sliding movement relative thereto, a bladeholder rockably mounted in I the support, a cam plate slidable in thesup port andshifted byits frictionalengage? between the cam plate-andblade holder for rocking theblade holder to reverse the blade as the camplate slides relative to the support, 'said connections includinggrooved holder working m-the grooves, the engagement of thejbladeandstrop limiting the sliding movement of the cam plate. p

6. 'I'hec'ombmzition with an open topped;

casing, of a cam plate 'sliding in guideways ably mountedin bearings atthe top of the 'casing'and including a pair of blade clamping elements,rollers at the end of the casing under which, and over the" canrplate, ashop is adapted'to'be threaded, and opera- 401 ment with the strop,"operative connections] 4a .fianges on the cam plate and cams on thebelow. the top thereof, a blade holder rock? I tive connections betweenthe cam plate and the blade holder, whereby when the cam plate is slidby its frictional engagement with the strop, the blade holder will betilted. 7 Thecombination with an open topped] casing,'of a cam platesliding in guideways below the to thereof, a bladeholder rock- '7Vably'mountec in bearings at'thetop of the casing and including apair'of blade clamping elements, roll'ersat the end of the Casing underwhich, and over the cam plate, a strop is adapted to be threaded, andoperative connections between the cam plate and the blade holder,.whereby when the cam plate the holder Workingin the grooves.

.WALTER UHNGTON, 1

is slid by its frictional engagement with the r strep, the blade holderwill be tilted, said 5 means including flanges on the'cam plate havingrecesses therein and cams rigid with

